28017PIEDRAS PRECIOSASTTes-ESTESAURO DE MATERIAS DE SERBIULA active approved PIEDRAS PRECIOSAS[NK7650-NK7690 (Jewelry)]
[QE392-QE394 (Mineralogy)]
[TJ1193 (Tools)]
[TN980-TN997 (Mineral resources)]
[TS750-TS757 (Manufactures)]

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